u didnt take it to the ford dealer did u?
when does ford say the timming belt should be changed?
currently at 78k+

Start your own thread. The problem that the OP is having in this thread is not even related to a timing belt.

Look at the threat title above where these posts are. You'll see something like Focus Fanatics> Ford Focus Tech Discussions> General Technical Chat> SVT with sudden rough idle, power loss.

Click on "General Technical Chat", and a new list of threads will appear. At the top left side of that list, you will see a yellow button that reads "Post New Thread", click on that, and describe your problem, your vehicle, and your mileage. That is the best way to get answers on this forum. Thanks for posting!

Fuel filter and pump replaced. Fuel pressure was abysmal before, it's optimal now. Filter was likely original (135k miles!) and pump was full of crud. Car will start now, and may run well for 5-10 seconds, then falls on its face and stalls. Seems to do better with throttle applied. (This is what shop told me, haven't driven it myself.)

They're stumped, and I told them not to throw parts at it, I'll just take it home and try to figure it out myself. I think it's drivable at this point.

Still to check:

Vacuum leaks, I checked the easy ones, haven't gotten to all of them yet. Shop wanted $80 to do a smoke test. Eff that.

Coil pack pigtail wiring.

MAF sensor. Don't want to replace it if I don't have to, they're surprisingly expensive.

Before changing the primary o2 sensor (for the second time), my car would run fine for a bit, and then randomly run like garbage. It too was better with some throttle applied than with it being at idle or even just above.

I haven't driven it since the fuel pump was replaced, but it was about 9/10s of shit when it first happened. I'll be picking it up tonight after work.

That's what I'm thinking too, a bunch of little stuff making it run a bit goofy, then the fuel filter/pump was the straw that broke the camel's back. Plugs and wires are new-ish, less than 7k miles on them.

So. Go to pick the car up at shop after work, service manager tells me its not really driveble and will drop it off at my house free of charge in the morning. I went to poke around under the hood one last time, but now it won't start again... Turns over just fine, just never fires off. Starting to get worried now.

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

What I Drive

Year, color, and model of your car. Example: 2003 Pitch Black ZX3

Name

Your real name.

City

State

Country

Insurance

Please select your insurance company (Optional)

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.